void *xdlopen (const char *filename, int flags);
void *xdlmopen (Lmid_t lmid, const char *filename, int flags);
void *xdlsym (void *handle, const char *symbol);
+void *xdlvsym (void *handle, const char *symbol, const char *version);
void xdlclose (void *handle);
__END_DECLS